RL855-222K-RC Equivalent & Substitute Parts

Part Overview

The RL855-222K-RC is a 2.2 mH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 180 mA with a maximum DC resistance of 11.1Ohm. This through-hole component features a radial, vertical cylinder package and operates across a temperature range of -30°C to 100°C. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

RL855-222K-RC

Bourns Inc.In Stock: 1076RL855-222K-RC Datasheet

Current PartRFQ

RL875-222K-RC

Bourns Inc.In Stock: 2765RL875-222K-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The RL875-222K-RC qualifies as a direct substitute for the RL855-222K-RC based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Inductance: 2.2 mH (identical)
• Inductance Tolerance: ±10% (identical)
• Current Rating: 180 mA (identical)
• Core Material: Ferrite (identical)
• Shielding: Unshielded (identical)
• Package Type: Radial, Vertical Cylinder (Open) (identical)
• Mounting Type: Through Hole (identical)
• Physical Dimension: 0.307" Dia (7.80mm) (identical)

Differing Parameters:

• DC Resistance: RL875-222K-RC has 6.25Ohm Max (lower than RL855-222K-RC at 11.1Ohm Max)
• Operating Temperature: RL875-222K-RC operates -40°C ~ 105°C (wider range than RL855-222K-RC)
• Product Status: RL875-222K-RC is Active (versus Obsolete)
• Height: RL875-222K-RC is 0.295" (7.50mm) versus RL855-222K-RC at 0.217" (5.50mm)

The lower DC resistance and extended temperature range of the RL875-222K-RC represent performance improvements suitable for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The RL875-222K-RC is suitable as a replacement for the obsolete RL855-222K-RC in applications where the following conditions are met:

• PCB layout accommodates the increased height of 0.295" (7.50mm) versus the original 0.217" (5.50mm)
• Lower DC resistance of 6.25Ohm Max is acceptable or beneficial to the circuit design
• Extended operating temperature range of -40°C ~ 105°C meets or exceeds application requirements
• Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment

The RL875-222K-RC is an active product with confirmed inventory availability, providing supply chain continuity for the RL855-222K-RC obsolete line.

Frequently Asked Questions (FAQ)

Q: Can the RL875-222K-RC directly replace the RL855-222K-RC on existing PCBs?

A: Direct replacement is possible if PCB layout accommodates the increased component height. The RL875-222K-RC measures 0.295" (7.50mm) in height compared to the RL855-222K-RC at 0.217" (5.50mm). All other mechanical dimensions, including the 0.307" (7.80mm) diameter, remain identical.

Q: What is the impact of the lower DC resistance in the RL875-222K-RC?

A: The RL875-222K-RC has a maximum DC resistance of 6.25Ohm compared to 11.1Ohm in the RL855-222K-RC. This lower resistance reduces power dissipation and heat generation in the inductor, which is generally advantageous for circuit performance and thermal management.

Q: Are both components compliant with current regulatory standards?

A: Yes. Both the RL855-222K-RC and RL875-222K-RC are ROHS3 compliant and REACH unaffected, meeting current electronic component regulatory requirements.

Q: What is the significance of the RL875-222K-RC being an active product?

A: The RL875-222K-RC is currently in active production with confirmed inventory availability. This ensures reliable supply chain access for new designs and production runs, unlike the obsolete RL855-222K-RC.

Q: Do both inductors share the same electrical specifications?

A: Both components have identical inductance (2.2 mH), tolerance (±10%), current rating (180 mA), core material (ferrite), and shielding (unshielded). The primary electrical difference is the DC resistance, where the RL875-222K-RC offers improved performance with lower resistance.